This moisturizing serum contains low-molecular-weight hyaluronic acid to hydrate the skin. It was a gift from a friend, but I'm currently decluttering all my cosmetics because I recently became pregnant. It's new and unused. I hope someone can use it. - Brand: Torriden - Product Name: DIVE IN Serum - Contents: 50ml - Features: Clean & Vegan - Country of Origin: South Korea - Purchase Price: ¥2,420 Thank you for looking. I opened it once for the photos, but it's unused.